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Modernizing the Oracle ODS Data Warehouse for SaaS flexibility with PostgreSQL on AWS

Imagine trying to keep up with the evolving needs of higher education institutions while ensuring your systems are cost-effective and scalable. This was the challenge faced by our client, a company providing a suite of software solutions for educational institutions. They needed to modernize one of their core components—an Operational Data Storage (ODS) system, which […]
Oleksii Savchenko (DB Developer), Oleksii Svitlychnyi (Technical writer)

Introduction to the 12-step Migration and Modernization Methodology

At ABCloudz, we know that a successful migration or modernization project relies on a solid foundation and a well-defined approach. Our approach is encapsulated in the 12-step Migration and Modernization Methodology, which we’ve developed and refined over 20 years of practice. It has proven so effective that it was adopted by AWS to guide their […]
Adam Robertson

Migration Solution Document Capturing the Project Roadmap — Part 4

Welcome to the fourth and final blog post in the overview series dedicated to our 12-step Migration and Modernization Methodology that was adopted by AWS. We started by defining workloads and examining their interdependencies, which set the stage for capturing the current architecture and designing the future state architecture as part of the first step […]
Adam Robertson

Analyzing Migration Project Efforts and Crafting the Project Plan — Part 3

Welcome to the third blog post in the overview series dedicated to our 12-step Migration and Modernization Methodology that was adopted by AWS. In our first and second blog posts, we explored the critical role of defining workloads in migration projects and laid out the process of capturing the current architecture and designing the future […]
Adam Robertson

Current and Future State Architectures — Part 2

Welcome to the second blog post in the overview series dedicated to our 12-step Migration and Modernization Methodology that was adopted by AWS. In the first blog post, we began exploring the first step of the methodology — Future State Architecture Design.We focused on the definition of a workload and outlined how categorizing system components […]
Adam Robertson

Workload Definition Shapes the Migration & Modernization Roadmap — Part 1

Welcome to the first blog post in the overview series dedicated to our 12-step Migration and Modernization Methodology that was adopted by AWS. In any migration or modernization project, it’s crucial to start with a clear understanding of the system’s components and their relationships. This is where workload definition comes into play. Defining workloads correctly […]
Adam Robertson

EDW to Azure Databricks Migration

ABCloudz recently completed a significant project migrating an Enterprise Data Warehouse (EDW) from an on-premises SQL Server 2014 to Azure Databricks for a leading global retailer operating 3,000 offline stores across 40 countries. This migration was essential for addressing physical server limitations and outdated technology that hindered data processing and storage capabilities. Embracing Big Data […]
Sergey Shtypuliak (DB Engineer), Oleksii Svitlychnyi (Technical writer)

Custom data migration solution for a complex Oracle to PostgreSQL migration project using AWS DMS

In this post we’d like to share with you our experience in delivering a sophisticated database migration solution on top of AWS DMS for one of our large enterprise customers. The client is a large technology corporation that provides software solutions and services for telecom giants and mid-size companies. They ran numerous Oracle databases where […]
Alexander Gora

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